CN102934684B - Modified atmosphere preservation method of marine brassica chinensis L. - Google Patents
Modified atmosphere preservation method of marine brassica chinensis L. Download PDFInfo
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- CN102934684B CN102934684B CN201210512341.8A CN201210512341A CN102934684B CN 102934684 B CN102934684 B CN 102934684B CN 201210512341 A CN201210512341 A CN 201210512341A CN 102934684 B CN102934684 B CN 102934684B
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- shanghai
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- freshness protection
- gas
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004321 preservation Methods 0.000 title abstract description 14
- 244000221633 Brassica rapa subsp chinensis Species 0.000 title abstract description 8
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 title abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 36
- 230000006866 deterioration Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000004320 controlled atmosphere Methods 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000005138 cryopreservation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 241000219193 Brassicaceae Species 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The invention discloses a modified atmosphere preservation method of marine brassica chinensis L. The modified atmosphere preservation method comprises the following steps in sequence: 1) precooling; 2) preserving by adopting preservation pouches; 3) configuring gas parameter values in the preservation pouches: utilizing a high-precision gas distribution instrument to input gases O2, CO2 and N2 into the preservation pouches with brassica chinensis L., wherein the parameter values of the gases are as follows: the concentration of O2 is 2-15%, the concentration of CO2 is 8-15% and the rest gas is N2; 4) putting the preservation pouches in a cold store for storage: controlling the temperature of the cold storage to be 0-5 DEG C and the relative humidity to be 60-90%; and 5) finishing the operation. The modified atmosphere preservation method has the following beneficial effects: through precooling, packaging with the preservation pouches, configuration of the gases O2, CO2 and N2 in the preservation pouches and control of the key processes such as temperature and humidity, the storage period of brassica chinensis L. is lengthened to 45 days; more than 95% of brassica chinensis L. does not suffer from quality deterioration such as water loss of leaf surfaces and even rot and maintains good edibility; and the method is simple, is lower in cost, avoids chemical residues during storage and conforms to the international requirements.
Description
Technical field
The present invention relates to the preservation method of the blue or green rape in a kind of Shanghai, particularly be a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel.
Background technology
The blue or green rape (Brassica chinensis L.) in Shanghai, belongs to Cruciferae, and rape belongs to Chinese cabbage subspecies, and blade is oval, and petiole is plump, dark green, and plant type is with a tight waist, and the sweet mouthfeel of taste is good.A mutation of the common Chinese cabbage that the blade of take is product, originate in China, heat-resisting, cold-resistant, moisture-proof, disease resistance are strong, contain rich in protein, carbohydrate, crude fibre and multivitamin, the mineral matter of needed by human body can be provided, often edible have good effect to the maintenance of skin and eyes, is deeply subject to liking of numerous crewman all the time.
Because Shanghai blue or green rape leave face look vivid, specific area is larger, therefore to keeping fresh-keeping condition and the shelf life of the blue or green rape better quality in Shanghai to require tighter, in prior art, the blue or green rape preservation and freshness in Shanghai is adopted the processing method of cryopreservation, the fresh-keeping concrete parameter of cryopreservation is: temperature is controlled at 3 ℃ ~ 4 ℃; The freshness date of the blue or green rape in Shanghai only has 3 days ~ and 4 days; In preservation process, usually there is the even aging rotten quality deterioration phenomenon of blade face wilting dehydration.In above-mentioned prior art, to the blue or green rape method for storing and refreshing in Shanghai, cannot meet 30 days above Storage Requirements during peculiar to vessel, directly affect crewman's food supply demand.
Summary of the invention
The object of the invention is to overcome the defect of above-mentioned prior art, a kind of fresh-retaining preserving phase that can extend the blue or green rape in Shanghai is provided, can keep again the famished look of the blue or green rape in Shanghai bud green, quality is good, realizes the air regulating fresh-keeping method of the blue or green rape in Shanghai a kind of peculiar to vessel of crewman's " meal meal has leaf vegetables " target.
The technical scheme solving the problems of the technologies described above is: a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively: 1). precooling: be placed in rapidly 0 ℃ ~ 5 ℃, the freezer precooling of relative humidity 90% ~ 95% after the blue or green rape in Shanghai is gathered 10 hours ~ 45 hours; 2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 30cm ~ 120cm, wide 20cm ~ 100cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 1kg ~ 20kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface); 3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O2 concentration is 2% ~ 15%, CO2 concentration is 8% ~ 15%, remaining gas is N
2; 4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 0 ℃ ~ 5 ℃, relative humidity 60% ~ 90%; 5). finish.
The invention has the beneficial effects as follows: the present invention overcomes the defect of prior art, and the present invention is by precooling; Freshness protection package packing; In freshness protection package, configure O
2, CO
2, N
2gas; And in conjunction with the control to key technology techniques such as temperature, humidity, make the storage period of the blue or green rape in Shanghai extend to 45 days by 1 day under normal temperature ~ 2 days, there is not the even rotten quality deterioration phenomenon that waits of blade face dehydration in the blue or green rape in Shanghai in freshness protection package more than 95%, keeps good edibility.The method operating procedure is simple, and cost is lower, in storage, without chemical residual, meets China's vegetables industry demand for development.
The specific embodiment
Below embodiments of the invention are described in detail.
The invention provides a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly 0 ℃ ~ 5 ℃, the freezer precooling of relative humidity 90% ~ 95% after the blue or green rape in Shanghai is gathered 10 hours ~ 45 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 30cm ~ 120cm, wide 20cm ~ 100cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 1kg ~ 20kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 2% ~ 15%, CO
2concentration is 8% ~ 15%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 0 ℃ ~ 5 ℃, relative humidity 60% ~ 90%;
5). finish.
Described high-accuracy gas mixing device is that the model of being produced by Tianjin CNRO Science Technology Development Co., Ltd research and development is CPY-3000/6, and sells on market, is mainly used in controlled atmosphere industry.This high-accuracy gas mixing device can regulate from control panel the distribution parameter of gas with various, meet the concentration requirement of oxygen, carbon dioxide and nitrogen in required mist, its distribution precision is high, reproducible, fast response time, reliable and stable, automaticity and the preserving fruit and vegetable utilizing effect that can effectively improve controlled atmosphere, also have good safety in utilization.
Embodiment 1:
The invention provides a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly 0 ℃, the freezer precooling of relative humidity 90% after the blue or green rape in Shanghai is gathered 10 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 32cm, wide 20cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 1kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 2%, CO
2concentration is 8%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 0 ℃, relative humidity 60%;
5). finish.
Embodiment 2:
The invention provides a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly 5 ℃, the freezer precooling of relative humidity 95% after the blue or green rape in Shanghai is gathered 45 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 120cm, wide 100cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 20kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 15%, CO
2concentration is 15%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 5 ℃, relative humidity 90%;
5). finish.
Embodiment 3:
The invention provides a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly 2.5 ℃, the freezer precooling of relative humidity 93% after the blue or green rape in Shanghai is gathered 28 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 75cm, wide 60cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 9kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 8.5%, CO
2concentration is 12%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 2.5 ℃, relative humidity 75%;
5). finish.
Evidence, air regulating fresh-keeping method has effectively prevented the wilting dehydration on blue or green rape blade face, Shanghai, therefore controlling dehydration is one of mechanism of controlled atmosphere.
By the research of the blue or green rape controlled atmosphere effect in Shanghai and security is learnt: oxygen (O in the blue or green rape freshness protection package in Shanghai
2) concentration is controlled at 2% ~ 15% and can suppresses the chlorophyllous degraded in its blade face and prevent blade face yellow; Keep 8% ~ 15% carbon dioxide (CO
2) concentration can reduce the blue or green rape self in Shanghai respiratory rate, reduce the consumption of nutriment; In freshness protection package, keep being more than or equal to 70% nitrogen (N
2) concentration can slow down the oxidation of the blue or green rape in Shanghai, thereby have the green preservation of good guarantor.In addition, along with the respiration of the blue or green rape self in Shanghai in storage, CO
2concentration increases and accumulates in microbial cell gradually, and then directly upsets the normal physiological equilibrium of microorganism, reaches the effect of fungus-proof antisepsis.
From controlled atmosphere test and application effect, in the distribution ratio of determining, carry out controlled atmosphere, the storage period of the blue or green rape in Shanghai can reach 45 days, and gas injury phenomenon and the blade face dehydration quality deterioration phenomenon such as even rot does not all appear in the more than 95% blue or green rape in Shanghai, and fresh-keeping effect is good.Therefore this evidence controlled atmosphere is safety and effective.
Described freshness protection package is selected polyethylene (PE) material and is had gas-premeable, to described O
2permeability be 3900mL/m
224h0.1MPa ~ 13000mL/m
224h0.1MPa
*; To described CO
2gas-premeable is 7700mL/m
224h0.1MPa
*; The thickness of polyethylene (PE) material freshness protection package is 25.4 μ m.
Described " O
2permeability be 3900mL/m
224h0.1MPa ~ 13000mL/m
224h0.1MPa " implication refer under the pressure of 0.1 MPa, the O of every freshness protection package through 24 hours every square metre of polyethylene materials
2transit dose be 3900 milliliters ~ 13000 milliliters.
Described " CO
2gas-premeable is 7700mL/m
224h0.1MPa " implication refer under the pressure of 0.1 MPa, the CO of every freshness protection package through 24 hours every square metre of polyethylene materials
2transit dose be 7700 milliliters.
Claims (3)
1. the air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel, is characterized in that, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly 0 ℃～5 ℃, the freezer precooling of relative humidity 90%～95% after the blue or green rape in Shanghai is gathered 10 hours～45 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 30cm～120cm, wide 20cm～100cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 1kg～20kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 8.5%～15%, CO
2concentration is 12%～15%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 0 ℃～5 ℃, relative humidity 60%～90%;
5). finish.
2. according to a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel described in claim 1, it is characterized in that, the described air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel carries out in accordance with the following steps:
1). precooling: be placed in rapidly 2.5 ℃, the freezer precooling of relative humidity 93% after the blue or green rape in Shanghai is gathered 28 hours;
2). fresh-keeping with freshness protection package: the blue or green rape in Shanghai after precooling is placed in the freshness protection package of long 75cm, wide 60cm, and the blue or green rape amount in the in-built Shanghai of each freshness protection package is 9kg, and make the blue or green rape in Shanghai in freshness protection package in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in the blue or green rape freshness protection package in Shanghai
2, CO
2, N
2gas, its parameter value is respectively: O
2concentration is 8.5%, CO
2concentration is 12%, remaining gas is N
2;
4). enter Storage in cold bank: previous step is prepared to the blue or green rape freshness protection package in Shanghai after gas and put into freezer and preserve, controlling temperature of ice house is 2.5 ℃, relative humidity 75%;
5). finish.
3. according to a kind of air regulating fresh-keeping method to the blue or green rape in Shanghai peculiar to vessel described in claim 1 to 2 any one, it is characterized in that, described freshness protection package is selected polythene PE material and is had gas-premeable, to described O
2permeability be 3900mL/m
224h0.1MPa～13000mL/m
224h0.1MPa; To described CO
2gas-premeable is 7700mL/m
224h0.1MPa; The thickness of polythene PE material freshness protection package is 25.4 μ m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512341.8A CN102934684B (en) | 2012-12-04 | 2012-12-04 | Modified atmosphere preservation method of marine brassica chinensis L. |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512341.8A CN102934684B (en) | 2012-12-04 | 2012-12-04 | Modified atmosphere preservation method of marine brassica chinensis L. |
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|---|---|
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| CN102934684B true CN102934684B (en) | 2014-03-19 |
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|---|---|---|---|
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| CN107361129A (en) * | 2017-08-29 | 2017-11-21 | 北京农学院 | A kind of rape controlled atmospheric packing preservation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102165968A (en) * | 2011-04-07 | 2011-08-31 | 中国人民解放军63698部队 | Method for refreshing fruits and vegetables in ocean vessels |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102165968A (en) * | 2011-04-07 | 2011-08-31 | 中国人民解放军63698部队 | Method for refreshing fruits and vegetables in ocean vessels |
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